112 years old now in 2023 - what year born?

Today, 22 March 2023 if a person is 112 years old now, what year was he born? See below:

If 112 years old, year of birth is:
1910 or 1911*

*It depends on whether he was born before or after 1 January 1911.

If now 112 years and his year of birth 1910 if he was born after 22 March 1910 until 31 december 1910 inclusively, and his year of birth is 1911 if he was born from 1 January 1911 to 22 March 1911.

Other examples:

If now 6 years, year of birth 2016 or 2017
If now 16 years, year of birth 2006 or 2007
If now 29 years, year of birth 1993 or 1994
If now 31 years, year of birth 1991 or 1992

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